The lounge area features neutral colour tones and natural materials like leather and marble

Their spacious bathroom continues the dark wood theme and features his and hers sinks as well as eye-catching blue tiles on the wall behind the bath.

The couple’s stunning home features on tonight’s (Wednesday) episode of Grand Designs on Channel 4.

Penny explains: “I love modern architecture. You can express yourself via the building.

“You get yourself a plot and say, ‘I’m going to build a house that’s me.'”

Mark admitted that he’d fallen in love with the original guardhouse on the plot and the duo initially tried to build the new property around it, but the foundations were too weak, meaning that it had to be demolished.